Hyperbaric Oxygen Therapy (HBOT)

Studies:

Hyperbaric oxygen therapy as a neuromodulatory technique: a review of the recent evidence
Impact of Hyperbaric Oxygen Therapy on Cognitive Functions: a Systematic Review
Long-Term Effects of Neurofeedback and Hyperbaric Oxygen Therapy on Traumatic Brain Injury
Review of hyperbaric therapy & hyperbaric oxygen therapy in the treatment of neurological disorders